From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Letter to K.L.G. Sparking Plugs Ltd. requesting modifications to the 765A plug.
| Identifier | ExFiles\Box 162\4\ img009 | |
| Date | 31th May 1933 | |
| X1918.b. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}12/MA. May 31st., 1933. Messrs. K.L.G. Sparking Plugs Ltd., Robinhood Engineering Works, Putney Vale, London, S.W.15. For the attention of Major Carington. Dear Sirs, With reference to the 765A plug which you have recently sent us we have come up against one further modification which we wish to be made to this plug. We find that the brass fins on the top of the mica cause a spark to jump across to the induction pipe, and the largest diameter that we can satisfactorily use at this point is .375. We also find that the K.L.G. plug terminal is not permissible for the same reason. We are passing you an order for 2 dozen of these plugs and should be glad if you would modify them accordingly, to these details. Yours faithfully, FOR ROLLS-ROYCE LIMITED. | ||